﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Example58_Sharp
{
    class Rectangle
    {
        int width;
        int height;
        public Rectangle(int a, int b)
        {
            width = a;
            height = b;
        }
        public int area()
        {
            return (width * height);
        }

    }
    class Program
    {
        static void Main(string[] args)
        {
            Rectangle recta = new Rectangle(3,4);
            Rectangle rectb = new Rectangle(5,6);
            
            Console.WriteLine("rect a:{0}", recta.area());
            Console.WriteLine("rect b:{0}", rectb.area());

        }
    }
}

